Lamp.



No. 656,005. Patented Aug. l4, I900. C. F. ALLEN.

LAMP.

(Application filed Apr. 19, 1900.) (No Model.) 3 Sheets-$heet l,

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Patented Aug. [4, I900.

C. F. ALLEN.

LAMP.

(Application fl led. Apr. 19, 1900.)

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(Application filed Apr. 19, 1900.)

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CHARLES F. ALLEN, OF MASSILLON, OHIO.

LAMP.

SPECIFICATION forming part of Letters Patent No. 656,005, dated August14, 1900. Application fi1ed A ri119 1900. serial No. 18, 448. (Nomodel.)

To all whom, it may coiwei mg,

Beit known thatLOHARLEs F:ALLEN,a citizen of the United Statcs,residin gat Massillon,"

ing to be a full, clear, and exact description.

of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

The invention relates to'lamps, and more particularly to lamps of a highcandle-power, which may be used for street or hall lighting orhouse-lighting.

The object of the invention is to provide a lamp of this character whichshall be simple of construction, durable in use, comparativelyinexpensive of production, and which will produce a powerful light witha minimum expenditure of gas.

In the accompanying drawings, Figure 1 is a side elevation of thecomplete lamp,showing the globe and reflector in place. Fig. 2 is anenlarged side elevation. Fig. 3 is an enlarged detail view of theburner-head and the parts immediately associated therewith.

Fig. lis a vertical sectional view through the burner-head, themixing-chamber, and the regulating-valve. Fig. 5 is a cross-sectionalview through the mixing-chamber and valve on line 5 5 of Fig.2, and Fig.6 is a cross: sectional view through the burner-head on line 6 6 of Fig.2. r

In the drawings, 1 denotes the body of the burner-head, which isprovided with radial upwardly-extending burners 2, which communicatewith a centrally-disposed downwardly-projecting nipple 3. The upperportion of the head is provided with a vertical nipple 4, arrangedbetween the burners 2 and communicating with'two divergent by-passes 5,which, together with said burners and nipples, form an integral casting.

6 denotes a Y-pipe the-branches 7 of which are connected to theby-passes 5 by vertical pipes 8 and the body portion of which isprovided at its upper end with a jet-orifice 9, controlled by aneedle-valve 10.

11 denotes a mixing-chamber the upper end of which is screwed to thenipple 3 and the lower end of which surrounds the upper end of theY-pipc 6. The mixing-chamber is provided with a series of openings 12.

13 denotes a valve which is in the form of a sleeve and which is looselymounted upon the mixing-chamber and is provided with openings 14, whichby turning the valve may be made to register with the openings in themixing chamber to permit of the passage of airinto said chamber. Securedto said valve, preferably at its upper end and entirely surrounding thevalve, is a hood 15, which serves the twofold function of means for,rotating the sleeve and to prevent drafts or sudden gusts of air passingupward beyond the holes in the valve which would cause the light toflicker.

16 denotes an inlet-pipe which is screwed onto the nipple 4 and isprovided with a mantle-supporting head 17, which is held in adjustmentto said pipe by a set-screw 18. The head is provided with pivoted arms19,

from which the upper ends of the .mantles are suspended, while the lowerends of the mantles embrace the burners 2. It will thus be noticed thatfrom a point below the mantle supporting head the mantles entirelysurround the inlet-pipe, and the heat therefrom thus serves to rarefy orvaporize the gas or oil passing through said pipe into the burnerhead. I

20denotes a globe supported in a globeholder 21 and secured to the lowerend of the Ypipe,and 22 denotes an ornamental casing attached to thesupply-pipe and provided at its lower end with a reflector 23.

24 denotes a valve in the supply-pipe, and 25 denotes an operating-leverprovided with chains by means of which said valve may be mixing-chamber,which mixes with the gas or vapor and passes therewith upwardly throughthe centrally and vertically disposed nipple 3. From this point the gaspasses to the burners 2, from which point it escapes into the mantles. Agauze diaphragm 26 is arranged in each burner.

Various changes in the form, proportion, and the minor details ofconstruction maybe resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is

1. In a lamp of the character described, the combination, with asupply-pipe, of a burnerhead provided with radiating burners and withdownwardly-extending by-passes and vertical upwardly and downwardlyprojecting nipples, one of which nipples communicates with thesupply-pipe and the by-passes, and the other with the burners, a Y-pipearranged below the burner-head, pipes establishin g communicationbetween the branches of the Y-pipe and by-passes, and the mixingchamberconnected to the downwardly-extending nipple, substantially asdescribed.

2. In a lamp of the character described, the combination, withasupply-pipe, of a burnerhead having radial upwardly-extendingburners,by-passes and upwardly and downwardly projecting nipples, one of whichcommunicates with the supply-pipe and the by-passes, and the other withthe burners, a Y-pipe arranged below the burner-head, pipes con nectingthe Y-pipe with the by-passes, a mixingchamber located between saidconnectingpipes and in communication with the Y-pipe anddownwardly-projecting nipple, a valve for controlling the escape of gasthrough the Y-pipe into the mixing-chamber, and a valve for regulatingthe supply of air to the mixingchamber, substantially as described.

3. In a lamp of the character described, the combination, with asupply-pipe, of a burnerhead provided'with radiating burners and withby-passes and vertical upwardly and downwardly projecting nipples, oneof which nipples communicates with the supply-pipe and the by-passes,and the other with the burners, a Y-pipe, pipes establishingcommunication between the branches of the Y- pipe and the by-passes, amixing-chamber located between said connecting-pipes and secured to thedownwardly-extending nipple and Y-pipe, and mantles supported above theburners, substantially as described.

4. In a lamp of the character described, the combination, with asupply-pipe, of a burnerhead having radial upwardly-extending burners,down wardly-extendin g by-passes and upwardly and downwardly projectingnipples, one of which nipples communicates with the supply-pipe and theby-passes, and the other with the burners, a Y-pipe located below theburner-head, vertical pipes connecting the branches of the Y-pipe withthe said downwardly-extending by-passes, a mixing-chamber located abovethe Y-pipe and secured thereto and to the downwardly-extending nipple, avalve for controlling the escape of gas from the Y-pipe into themixing-chamber, a valve for regulating the supply of air to themixing-chamber, and a hood surrounding the air-valve, substantially asdescribed.

5. In a lamp of the character described, the combination with aburner-head provided with radiating burners and with by-passes andvertically upwardly and downwardly projecting nipples, one of whichcommunicates with the by-passes and the other with the burners, of aY-pipe, pipes establishing communication between the branches of theY-pipe and by-passes, a mixing-chamber secured to thedownwardly-extending nipple, a supply-pipe connected to theupwardly-extending nipple, a mantle-supporting head secured to saidsupply-pipe, and mantles connected to said head and surrounding saidpipe and engaged at their lower end with the burners, substantially asset forth.

6. In a lamp of the character described, a burner-head provided with aseries of upwardly projecting radial burners, downwardly-projectingby-passes adapted for connection with pipes leading to a mixing-chamber,and central upwardly and downwardly projecting nipples, one adapted forconnection with a supply-pipe and in communication with saidby-passes,and the other adapted for connection with a mixing-chamber andin communication with the bu rners,all formed of a single piece ofmetal, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES F. ALLEN. Witnesses:

O'rro E. YOUNG, CHARLES M. STELLING.

